Specially designed carbon black nanoparticle-sulfur composite cathode materials with a novel structure for lithium-sulfur battery application

Zhenjie Sun, Min Xiao, Shuanjin Wang, Dongmei Han, Shuqin Song, Guohua Chen, Yuezhong Meng

Research output: Journal article publicationJournal articleAcademic researchpeer-review

37 Citations (Scopus)

Abstract

Abstract Sulfur is a promising cathode material with a high theoretical capacity of 1672 mAh g-1, but the challenges of the low electrical conductivity of sulfur and the high solubility of polysulfide intermediates still hinder its practical application. In this work, we design and synthesize a special carbon black nanoparticle-sulfur composite cathode material (NCB-S@NCB) with a novel structure and a high sulfur content of 84 wt% for lithium-sulfur battery application. The NCB-S@NCB composite cathode delivers a high initial discharge capacity of 1258 mAh g-1and still maintains a reversible capacity of 865 mAh g-1after 100 cycles with a relatively constant Coulombic efficiency around 98.0%.
Original languageEnglish
Article number20927
Pages (from-to)478-484
Number of pages7
JournalJournal of Power Sources
Volume285
DOIs
Publication statusPublished - 1 Jul 2015
Externally publishedYes

Keywords

  • Carbon black nanoparticles
  • Cycling stability
  • Lithium-sulfur batteries

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Energy Engineering and Power Technology
  • Physical and Theoretical Chemistry
  • Electrical and Electronic Engineering

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